402343445 has 16 divisors (see below), whose sum is σ = 558773760. Its totient is φ = 272398464.

The previous prime is 402343421. The next prime is 402343463. The reversal of 402343445 is 544343204.

It is a cyclic number.

It is not a de Polignac number, because 402343445 - 2⁸ = 402343189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69992 + ... + 75521.

It is an arithmetic number, because the mean of its divisors is an integer number (34923360).

Almost surely, 2^402343445 is an apocalyptic number.

It is an amenable number.

402343445 is a deficient number, since it is larger than the sum of its proper divisors (156430315).

402343445 is a wasteful number, since it uses less digits than its factorization.

402343445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145604.

The product of its (nonzero) digits is 23040, while the sum is 29.

The square root of 402343445 is about 20058.5005670913. The cubic root of 402343445 is about 738.2423864094.

Adding to 402343445 its reverse (544343204), we get a palindrome (946686649).

The spelling of 402343445 in words is "four hundred two million, three hundred forty-three thousand, four hundred forty-five".